razer mamba wireless mouse

Hi, I'm trying to bind two keys together on my mouse. I want one key to have two functions instead of two keys having the same function. For example: In my game I have left click as fire weapon and key five as my spot enemy. I would like bind both keys together so when i use the left click I get both fire weapon and spot enemy at the same time. In synapse I can bind keys but they both have the same function. Thanks